{"data":{"id":"us/30-cfr-75.800-4","jurisdiction":"us","citation":"30 CFR 75.800-4","heading":"-4 Testing, examination, and maintenance of circuit breakers; record.","body":"(a) Recordkeeping. The operator shall make a record of each test, examination, repair, or adjustment of all circuit breakers protecting high-voltage circuits which enter any underground area of the mine.\n(b) Record security. These records shall be made in a secure book that is not susceptible to alteration or electronically in a computer system so as to be secure and not susceptible to alteration.\n(c) Retention and access. These records shall be retained at a surface location at the mine for at least one year and shall be made available to authorized representatives of the Secretary, the representative of miners, and other interested persons.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","Subpart I—Underground High-Voltage Distribution"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"3a507eb00f20962df9b3f5a1b9c06f6a60ad53a711ef0493dd371338354428b0","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.800-3","next":"us/30-cfr-75.801"},"notice":"GroundRules: Original legal text. Not legal advice."}